Building-block mold.



C. J. T. CRDES.l

BUILDING BLOCK MOLD.

ABPLIOATION FILED MAR; 1e. nos.

950,370. Patented Fenzz, 1910.

2 SHEETS-SHEET 1.

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BUILDING BLOCK MOLD.

APPLICATION FILED MAR. 1a, 190s.

950,370. Patented Feb.22,1910.

2 SHEETS-SHEET 2.

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' ATTORNEYS.,

VUNlllll CHARLES J. T. CORDES, OF WALDVVICK, NEW JERSEY.

BUILDING-BLOCK MOLD.

Application filed March 16, 1908.

Specification of Letters Patent.

llatented Feb. 22, 1910.

Serial No. 421,384.

To all, wilma fit lmay concern:

Be it known that I, CiiAnLns J. '.i. Comms, a citizen o't the UnitedStates, and a 'resident of lValdwicli, in the county ol Bergen and Stateot' New Jersey, have invented a. new and mproved Building- Block Mold,of which the following is a full, clear, and exact description.

This invention relates to building block molds, and the object of theinvention is to produce a mold which is adapted to malte building blocksof dil'llerent sizes.

The invention contemplates an arrangement in which the sides or wallsot' the mold may be moved outwardly so as to enlarge the mold, and themechanism includes means 't'or moving some ot' the walls in unison sothat thc cores lor 'the block are advanced automatically into position.

The invention may be considered as an improvement upon the devicepatented to me October 29, 1907 Patent Number 369,828.

The invention consists in the construction and combination ol parts tobe more fully described hereinal'ter and particularly set forth in theclaims.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the ligures.

Figure 1 is a side elevation ot a building block mold constructedaccording to my invention; Fig. 2 is a plan, certain parts being brokenaway; Fig. 3 is a vertical cross section through the mold, taken on theline 2)-3 of Fig. 2; this view shows the mold in its normal condition asadapted for molding building blocks of medium size; Fig. -l is avertical cross section taken on the line lvl of Fig. 2, showing theupper portion of the mold, and showing the parts in their condition whenthe mold is adapted to malte building blocks of small size; and Fig. 5 avertical section taken on the line 5 5 of Fig. Q, but showing the moldin the condition to make blocks ol an unusually large size.

Referring more particularly to the parts, and especially to Figs. 1 to3, 1 represents the frame of the machine, which is formed of twoopposite housings or standards 2 and 3. The middle portions of thesehousings are cut away so as to form a throat Ll ol substantiallyrectangular form, as indicated in Fig. 1. These housings 2 and 3 supporta bed or bed frame 5, of substantially rectangular lform. This frame isc011- structed of a continuous bar of channel lorm, the channel beingdisposed inwardly so as to present a horizontal upper ilange (3, ahorizontal lower flange 7, and a vertical web 8 connecting the same. Asindicated most clearly in Figs. 1 and 2, :troni the under side ol thisbed trame 5 a pair of vertically disposed guide bars 9 extend down-'wai-diy. These guide bars are disposed at equal distances from themiddle axis ol' the machine, as ini'licated in Fig. 2. These barsoperate as guides for a bottom plate 10, which is ot rectangular torni,as shown in Fig. Q. This plate is provided near its ends with guide lugs1l which receive the guide bars 9 so as to guide the bottom plate in avertical direction, as will be readily understood. This bottom plate isprovided with a pair of transversely disposed slots 12; these slotsfacilitate the fastening in position ot' the main core 13 ot' the mold,suitable bolts lil being used for this purpose, as shown. This core 13`may be of any suitable form such as that shown, but for convenience, ismade hollow and without any top or upper wall.

On the under side of the bottom plate, as indicated most clearly inFigs. 1 and 2, a cross head 15 is formed, and the ends of this crosshead terminate substantially at the sides ot the frame 5. At this pointthey are provided with outwardly projecting pins or gudgeons 1G, whichaord means `lor raising and lowering the bottom plate ot the mold, aswill be described hereinafter.

The end bars 17 of the frame 5 are provided with horizontally projectingguide bars 18, which are disposed parallel to each other as indicated.These guide bars 18 operate as guides tor the end walls 19 oit' themold. These walls consist simply of vertical plates which are providedon their rear sides and at their lower edges with guide sleeves Q0 whichslide on the guide bars 18 as indicated. These sleeves Q0 are preferablyconnected by an integral web Q1, and vertical webs 2Q connectii'ig thesleeves with the vertical plate or wall.

On the side bar 23 of the frame 5, as indicated in Fig. 5, outwardlyprojecting parallel guide bars 9.4 are provided, which are similar tothe guide bars 18, and these bars operate as guides for a main adjustingWall 2 5. rlhis wall presents a vertical plate as shown in Fig. 5, onthe outer side of which a rearwardly extending bracket 26 is formed, thesaid bracket terminating in guide sleeves 27 which slide on the guidebars 24, as indicated. These sleeves 27 are provided with clamping bolts28, which enable the wall to be clamped in any position desired. Asindicated in Fig. 5, the bracket 26 comprises a. horizontal web 29 whichis offset upwardly from the guide bars 24 so as to form an opening orthroat 3() which permits this'wall to be advanced over the frame in sucha way r that the vertical plate 31 of this wall is disfaces or edges ofthe cores 33 are formed posed over the interior of the frame The endwalls 19 are provided with longitudinal slots 32 which afford means foradjustably securing cores 33, which cores are adapted to coperate withthe core 13, as indicated in Fig. 2, to form a complete core for themold. These cores 33 are attached to the end walls by suitable bolts 34sliding in the slots 32.

It should be understood that this mold is adapted to forni blocks whichare in two sections connected by bonds or bars. ln order to enable theanchor bars or bonds to be applied in the molding operation the end withhorizontal grooves in which the bonds or anchor bars are placed duringthe molding, as fully described in my patent referred to hereinabove. Itshould be observed that these bonds do not engage in any way with theedges or end faces of the core 13 so that they do not tend to preventthe vertical sliding movement of this core when the mold is being openedor closed.

I provide means for moving the two end walls 19 of the moldsimultaneously, and also for moving the bottom plate 10 of the mold. Forthis purpose, in the frame 1, provide a pair of horizontal shafts 36 and37, which shafts project beyond the frame at the side, and are providedwith rigid arms 38. The ends of these arms are formed with forks 39which engage the pins 16, as indicated in Fig. 1, so that when the arms33 are moved downwardly, the bottom plate will be depressed, and viceversa.

The shaft 3T has a rigid segment 40, which meshes with a similarsegmentI 41 which is mounted upon a transverse shaft 42, which is alsomounted in the frame 1. rhis shaft 42 at its ends carries levers 43which project upwardly, and are formed with handles at their upper ends.rThe upper portions of the levers 43 are provided with slots and theseslots receive pins 46 which project laterally from the sleeves 2O at therighthand end wall. T he levers 43 extend downwardly so as to form arms47 which are connected by links 48 with arms 49 which are rigid with thearms 38 aforesaid. In this way the arms 38 and 49 constitute bell cranklevers 50 carried rigidly by the "shaft 36. On the shaft 3G near itsmiddle point, a segmentI 51 is provided, which meshes with a segment 52,the said segment 52 being rigidly attached to a cross shaft 53 havingrigid arnis which extend upwardly at the sides of the sleeves 2O of theleft-hand end wall. These sleeves are provided with pins 55 which arereceived in forks 56 similar to the forks 39. From this arrangement itshould be understood that when the levers 43 are moved toward the right,the end walls 19 will simultaneously move outwardly, and the bottomplate l() will be depressed. An opposite movement will advance the endwalls and elevate the bottom plate 10 into position. When the bottomplate is in its uppermost position, its upper face is on a level withthe upper faces of the flanges 6 of the frame 5as indicated in Fig. 3.Opposite to the main adjusting wall 31 there is provided a forward wallor facing wall 57. This wall consists simply of a vertical plateprovided with lugs 58 at its lower edge, and these lugs are pivoted orhinged on a horizontal bolt 59. rlChe ends of this bolt are secured inheads 60 carried upon short stems (31 which are mounted in the frame 5,as indicated in Fig. 4.`

rlhese stems (il may be adjusted in Orout so as to change theposition ofthe wall 57 with respect to the frame, and are adapted to be clamped inany'adjus'ted position by set screws or bolts G2. vided withlongitudinal slots 57a which euable a face plate to be attached on theinner side, the said face plate having stud bolts (33t which project tothe outside through the slots and receive nuts as shown in Fig. 3.special face plate G4 may be used so as to give a special character tothe outer face of the block, the same being fastened in place like theplate G3, as indicated in Fig. 4. On account of the adjusting stems (31the position of the wall 57 may adapt itself to different thicknesseswhich the plate G4 might have; that is, plates having differentthicknesses may be used as face plates.

@n the bottom plate 10 of the mold, and on the frame 5, i lay a palletG5 as indicated in Fig. 3. In this view the mold is represented asadapted for molding a block of normal size. In molding the block, themain adjusting wall 25 has its inner face in substantial alinement withthe edge of the frame The pallet G5 is provided with a central openingG6 having the form of the bottom core 13, so that the core may passupwardly into position through the pallet when the bottom plate movesinto place, as will be readily understood.

ff it is desired to mold a block smaller than the block which would bemolded in the manner indicatedr in Fig. 3, a vsrriallher The wall 5i' isprov be adjusted so as to come into the middle ot' i the smaller blockwhich is now to bc molded. At the saine time, the end cores 323 may beadjusted into central alinement on account ot' the slots 3Q. It will beevident, however, that it it is desired to mold a block with thc cores 13 and 33 oit the center, this may be accomj'ilished by providing a`special pallet with the central opening displaced it'rom the center, andby :fasteningl the cores 1? and il?) in the desired position.

ln connection with l? ig. 4t, special attention called to the manner inwhich the main adjusting wall overhangs the frame ot: the mold, byreason ol' the otl'set bracket 2(3 which connectsl it 'with the sleeve2T.

If it is desired to mold a blocl: ot larger dimensions than the frame 5,I provide the end walls lt) with extension plates (it) which arepreferably oit thin sheet metal, attached to the inner faces of the endwalls by bolts 70 which pass through the slots 32. ln this ,way the endwalls are built out or extended transversely of the mold. The mainadjusting wall will then be run out to a point near the limit ol itsoutward movement, and the clamping bolts 9S will secure it to the guidebars 24. The main or bottom core l?) is then adjusted into any positionsuch as the i'nidposition in which it is shown in AFig. 5, and a specialpallet 7l, which is adapted to be used jtor molding this large block, isset in position.

Special attention is here called to the throat. 30, which enables theend wall to slide in over a large pallet such as the pallet 7l. Thisarrangement enables a single pallet to be used for molding several sizesoit` blocks. In practice, a number oit standard pallets will be provided:t'or dil'l'eront sizes, and each pallet can be used for molding severalsizes as suggested. ln this way a great range .in the capacity ol` themachine is acquired.

It should be understood that in molding, the cement or composition outoit' which the blocks are formed, .is placed over the pallet in thebottom of the mold, and ait'ter the mold is lilled properly, the leversel-. are operated so as to move out the end walls. This movement alsowithdraws the cores from the interior of the mold, and the green i claimas new and desire to secure by Letters Patent:

l. In a mold, in combination, a frame, end walls, means for guiding saidend walls to slide outwardly in a lixed angular position, a side walladapted to slide outwardly, means 'tor guiding the same, stemsadjustably mounted in said lrame opposite to said side wall, and asecond side wall opposite to said first side wall pivotally supported onsaid stems and adapted to swing downwardly.

2. 1n a mold, in combination, a frame upon which the mold is formed, endwalls ior the mold, a movable side wall between said end valls, cores,means for attaching said cores to said end walls in different adj ustedpositions, and means lor guiding said end walls rearwardly in a lixedangular position.

3.111 a block mold, in combination, a lrame upon which the block isformed, end walls for the mold, a side wall slidably mounted betweensaid end walls, said end walls having longitudinally disposed slotstherein, cores attached to said end walls by bolts passing through saidslots, a bottom plate Jfor said mold and having transverse slots, and amain core having bolts running in said last slots, the edges ot' saidmain core abutting the edges ol said end cores.

Ll. ln a block mold, in combination, a ame, guides projecting from saidframe, end walls mounted on said frame, and a side wall supported onsaid guides and sliding between said end Valls, said side wallprojecting inwardly from the point oi support thereof on said guideswhereby said side wall may overhang said frame.

5. In a block mold, in combination, a frame, guides projecting from saidframe, end walls mounted on said frame, a side wall supported on saidguides and sliding between said end walls, Said side wall projectinginwardly from the point ofsupport thereof on said guides whereby saidside wall may overhang said frame, and cores adjustably attached to saidend walls.

G. In a block mold, in combination, a frame having laterally projectingside bars on a side thereof, end walls, a side wall having sleevesslidably mounted on said guide bars and having a vertical plate, saidvertical plate being offset inwardly from said sleeves whereby said sidewall may overhang said frame in molding small blocks.

7. In a block mold, in combination, a frame having laterally projectingguide bars on a side thereof, end walls, a side wall sliding on saidguide bars and adapted to pass between said end walls, said side wallbeing oli'set inwardly 'from the point of support thereof, and means forsecuring said side wall to said guide bars.

8. ln a block mold, in combination, a

llO

frame upon which the mo'ld is formed, a i name to this specification inthe presence of sliding' side Wall, a face Wall opposite there i twosubscribing Wlt'nesses.

to and hinged to said frame means for adv justng said face Walloutwalzdly, and means CHARLES J T' CORDES' for securing a face plate tothe inner side of 1Witnesses:

said face Wall. i F. D. AMMEN,

In testimony whereof I have signed my l JOHN P. DAVIS.

